---
# Copyright 2016, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# This set of tasks checks whether the repo is up yet. If it is it
# will use the compiled upper constraints available there. If it
# is not yet up, then it will use the upstream upper constraints
# for the SHA currently pinned.

- name: Test internal repo URL for the current upper constraints file
  uri:
    url: "{{ pip_install_upper_constraints }}"
    method: "HEAD"
    timeout: 3
  register: upper_constraints_check
  failed_when: false
  tags:
    - common-constraints

- name: Test internal repo URL for the availability of the pypi index
  uri:
    url: "{{ pip_default_index }}"
    method: "HEAD"
    timeout: 3
  register: pip_default_index_check
  failed_when: false
  tags:
    - common-constraints

- name: Remove global requirement pins file from host
  file:
    path: "/opt/global-requirement-pins.txt"
    state: absent
  when: (upper_constraints_check.status | default(503)) == 200
  tags:
    - common-constraints

- name: Copy global requirement pins file to host
  copy:
    src: "../global-requirement-pins.txt"
    dest: "/opt/global-requirement-pins.txt"
  when: (upper_constraints_check.status | default(503)) != 200
  tags:
    - common-constraints

# Use https when Python with native SNI support is available
- name: Set pip install upper constraints protocol
  set_fact:
    pip_install_upper_constraints_proto: "{{ ansible_python_version | version_compare('2.7.9', '>=') | ternary('https','http') }}"
  when: (upper_constraints_check.status | default(503)) != 200
  tags:
    - common-constraints

- name: Set pip install upper constraints
  set_fact:
    pip_install_upper_constraints: >-
      /opt/global-requirement-pins.txt
      --constraint {{ pip_install_upper_constraints_proto }}://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt?id={{ requirements_git_install_branch | regex_replace(' #.*$','') }}
  when: (upper_constraints_check.status | default(503)) != 200
  tags:
    - common-constraints

- name: Fallback to PyPI
  set_fact:
    pip_default_index: "https://pypi.python.org/simple"
  when: (pip_default_index_check.status | default(503)) != 200
  tags:
    - common-constraints
